Deting frame fob



(No Model.)

- H. KUHN.

DRYING FRAME FOR SENSITIZED PAPER.

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Urvrrnn dares HENRY KUHN, OF ST. LOUIS, MISSOURI.

DRYING-FRAME FOR 'SENSITlZED PAPER.

SPECIFICATION forming part of Letters Patent No. 339,666, dated April13, 1886.

Application filed April 30, 1885.

To all whom it may concern:

Be it known that I, HENRY KUHN, a citizen of the United States, residingat St. Louis, in the county of St. Louis and State of Missouri, haveinvented certain new and useful Improvements in Drying-Frames forSensitized Paper; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters andfigures of reference marked thereon, which form a partof thisspecification.

My invention has relation to dryingfiames for sensitized paper used byphotographers; and the object of the invention is to provide a devicewhereby the paper after being silvered may be dried without buckling orwarping, and at the same time secure the edges of the paper, so that asthe paper shrinks in drying it will assume a perfectly plane surface;and to these ends the novelty consists in a frame so arranged to securethe edges of the paper, as will be hereinafter more fully described.

In the accompanying drawings, the same letters of reference indicatelike parts of the invention.

Figure l is a perspective view of my frame opened for the reception ofthe silver-ed paper. Fig. 2 is a cross-section of the same on the lineof one of the fastening-buttons; and Fig. 8 is an enlarged sectionaldetail of a portion of the framepas shown in Fig. 2.

A B represent two frames of similar size and shape, provided with a pairof hinges, a. a.

C G are turn-buttons, which engage with the plate a in recesses D, andserve to clamp the frames together.

E is a rubber strip extending around the f inner face of the frame B,and projecting a short distance above its surface.

E is a corresponding groove in the face of the frame A, so that when theframes are Serial No. 164,003. (No model.)

moved from them, are placed back to back,

and laid in the frame so their edges will extend beyond the groove E.The framesare then closed, and the rubber strip E presses the edge ofthe paper into the groove E, thus firmly securing it all around itsedges. The frame is then placed aside or hung up, so the paper may dry,and after it has dried it may then be placed in the fuming-box.

The advantage of handling paper in this way is, that the paper dries inthe frame as smooth and fiat as a drum'head, and after re- 6c moval fromthe frame remains perfectly smooth and fiat, thus insuring a perfectcontact with the negative in printing, and the paper is not so liable tobe soiled as if it were handled directly, as is now the case. Moreover,the pa per can be out either crosswise or lengthwise, as it does notshrink or stretch afterward.

Having thus fully described my invention,

, what I claim as new and useful, and desire to secure by Letters Patentof the United States, 1s-

1. A pair of open hinged frames arranged to clamp the sensitized paperor film between them, so that the frames, by reason of their thickness,will project on either side thereof 7 5 at right angles to the paper toprotect the surface of the same, in combination with a locking device,as set forth.

2. The combination, with the frame A B, having groove E and rubber stripE, of the turubutton O, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

"HENRY KUHN.

Witnesses:

GOTTFRIED Gucnns, CHAS. E. METZ.

